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Jeep TJ Forum Third generation of the classic Jeep - manufactured since 1997. Known by the coil springs and round headlights. Includes the Rubicon and Unlimited editions as well

Check Engine Light

   
Old 08-14-2010, 05:36 PM
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Default Check Engine Light
Need help...I changed my thermostat and did a coolant flush and now my check engine light is on...any ideas?1999 Tj 4.0L Sport
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Old 08-14-2010, 11:19 PM
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No help...thanks this site sucks
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Old 08-15-2010, 12:07 AM
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Default Re: Check Engine Light
People have lives bro sometimes it takes awhile, it is the weekend after all.

Try disconnecting the negative terminal, that should get rid of it. Sometimes the computer will have a hiccup when you do that kind of stuff. It will usually erase the problem out of the PCM memory after 30-40 normal starts.
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Old 08-15-2010, 08:13 AM
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Thanks I'll give it a try...sorry just frustrated had to pick up two sexy ladies and go to a party and didn't know if I should drive
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Old 08-15-2010, 07:41 PM
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Turns out I pinched a wire on my temperature sensor on my thermostat housing....fixed it now my light is out
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Old 08-17-2010, 03:39 PM
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Glad you found the problem and it wasn't anything major.
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